<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <div id="app">
    {{ message }} / {{ other }}<br>
    <input type="text" v-model="message"> <br>
    <input type="text" :value="other" @input="handleInput">
  </div>

  <script src="./libs/vue.js"></script>
  <script>
    const vm = new Vue({
      el: '#app',
      data: {
        message: 'hello',
        other: '另一个消息'
      },
      methods: {
        handleInput(event) {
          // console.log(event.target.value)
          this.other = event.target.value
        }
      }
    })
  </script>
</body>
</html>